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Texas Instruments TM4C1232E6PMIR
- Part No.:
- TM4C1232E6PMIR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TM4C1232E6PMIR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TM4C1232E6PMIR from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash memory, and 32 KB SRAM, featuring integrated USB 2.0 device/OTG controller, 12-bit ADC (1 MSPS), and multiple serial interfaces including UART, I²C, and SSI - deployed in industrial motor control and sensor gateway applications.
For engineers reviewing the TM4C1232E6PMIR datasheet, TM4C1232E6PMIR pinout, TM4C1232E6PMIR application, or TM4C1232E6PMIR equivalent, key selection criteria include its 100-pin LQFP package, -40°C to +105°C extended temperature range, USB OTG capability, and integrated analog peripherals supporting real-time signal acquisition.
Technical Context
The TM4C1232E6PMIR integrates a single-core ARM Cortex-M4F processor with hardware floating-point unit (FPU), supporting Thumb-2 instruction set and deterministic interrupt latency down to 12 clock cycles. It implements a unified memory map with configurable memory protection unit (MPU) and supports vector table relocation for bootloader flexibility.
System-level integration includes a programmable system clock generator with PLL, power management with sleep/deep-sleep modes, and on-chip ROM containing TivaWare™ boot loader and peripheral driver library. Debug is supported via JTAG and SWD interfaces with full ARM CoreSight™ trace capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz - enables real-time deterministic control with hardware FPU for sensor fusion math. |
| Flash Memory | 256 KB - sufficient for dual-bank firmware updates and embedded protocol stacks (e.g., Modbus TCP). |
| SRAM | 32 KB - supports real-time buffering of ADC samples and USB endpoint FIFOs without external RAM. |
| ADC | 12-bit, 1 MSPS, 12-channel - delivers sub-μs sampling for closed-loop motor current sensing. |
| USB Interface | USB 2.0 Device/OTG - allows direct host connection for firmware updates or HID-class device emulation. |
| Temperature Range | -40°C to +105°C - qualified for under-hood automotive subsystems and industrial PLC edge nodes. |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) - compatible with standard reflow processes and accessible routing for mixed-signal PCBs. |
Pinout & Package
TM4C1232E6PMIR is housed in a 100-pin LQFP package (Pb-free, RoHS-compliant) with exposed thermal pad. Pin assignments follow TI's standard Tiva C Series pin mapping, supporting multiplexed GPIO, analog inputs, and dedicated peripheral functions across all banks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply rails | Separate digital (VDD), analog (VDDA), and core (VDDC) supplies enable noise isolation for ADC and PLL stability. |
| USB0VBUS, USB0ID | USB OTG detection | Enables automatic role switching between host/device mode based on VBUS presence and ID pin state. |
| AIN0–AIN11 | Analog input channels | 12 dedicated ADC inputs mapped to Port E and Port F pins - support differential and single-ended acquisition. |
| PD0–PD7, PE0–PE5, PF0–PF4 | GPIO with alternate functions | Multi-function pins support UART, I²C, SSI, PWM, and timer capture - configurable per application via GPIOAFSEL register. |
| NMI, RESET | System reset and fault inputs | Dedicated non-maskable interrupt and active-low reset pin ensure robust recovery from brown-out or watchdog timeout. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated IEEE 754 single-precision math - reduces cycle count for PID tuning and FFT-based vibration analysis by >5× vs software emulation. |
| Micro-DMA Controller | 32-channel μDMA with scatter-gather support - offloads CPU during ADC-to-memory transfers and USB bulk data movement. |
| Integrated ROM Bootloader | Pre-programmed ROM with In-Application Programming (IAP) API - enables field firmware updates over UART or USB without external programmer. |
| Programmable Clock System | Multiple PLL configurations and clock gating per peripheral - allows dynamic power scaling (e.g., reduce USB clock when idle, boost ADC clock for oversampling). |
| GPIO Commit Registers | Write-once commit control for pin configuration - prevents accidental reconfiguration during runtime critical sections. |
Applications
| Industrial Motor Control | Sensor Data Gateway |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors using space-vector PWM and real-time current feedback. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, managing gate drivers, and synchronizing ADC sampling with PWM edges. Use Value: Hardware FPU and deterministic 80 MHz timing enable <1 μs current loop execution - meeting IEC 61800-7 functional safety timing constraints. | Use Scenario: Aggregating temperature, humidity, and pressure readings from multiple I²C/SPI sensors and forwarding via USB or UART to host PC. IC Role / Device Role / Timing Role: Protocol bridge and preprocessing node performing sensor calibration, filtering, and packet framing. Use Value: Integrated 12-bit ADC and multi-protocol serial controllers eliminate external transceivers - reducing BOM cost and board area by 30%. |
| Automotive Diagnostic Tool | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Handheld OBD-II scanner interfacing with vehicle ECUs via CAN and USB HID for diagnostics and parameter tuning. IC Role / Device Role / Timing Role: USB HID device controller with CAN interface handling ISO 15765-2 transport layer and diagnostic session management. Use Value: On-chip USB OTG and CAN PHY support (with external transceiver) enables direct PC connectivity and standardized vehicle bus communication - no FPGA or companion IC required. | Use Scenario: DIN-rail mounted I/O expansion module accepting digital inputs, analog inputs, and driving relay outputs in factory automation systems. IC Role / Device Role / Timing Role: Real-time I/O manager with deterministic scan cycle timing, watchdog supervision, and isolated communication interface. Use Value: Extended temperature rating (-40°C to +105°C) and integrated watchdog/timer peripherals meet EN 61131-2 industrial environmental requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB flash, no integrated USB PHY - requires external USB transceiver. | Higher performance but larger footprint (100-pin LQFP same size, but higher pin count variants common); lacks ROM bootloader. | Select when needing >80 MHz throughput or larger code space; verify USB layout compatibility due to external PHY requirement. |
| MSP432P401RIPZ | ARM Cortex-M4F @ 48 MHz, 2 MB flash, integrated 14-bit SAR ADC, lower power consumption - no USB OTG support. | Better suited for battery-powered sensor nodes; lacks USB host capability and has reduced peripheral concurrency. | Select for ultra-low-power applications where USB connectivity is not required and higher-resolution ADC is critical. |
Compared with STM32F407VGT6 and MSP432P401RIPZ, TM4C1232E6PMIR offers balanced performance, integrated USB PHY, and production-ready TivaWare™ drivers - making it optimal for cost-sensitive industrial gateways requiring rapid USB-based firmware deployment and analog signal acquisition.
Availability
TM4C1232E6PMIR is available at Aetrix Electronics and suitable for industrial motor control, sensor data gateways, automotive diagnostic tools, and programmable logic controller I/O modules requiring stable component supply and long-term manufacturability.
Supply support for TM4C1232E6PMIR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions, with over 90 years of innovation in industrial, automotive, and consumer electronics.
The TM4C1232E6PMIR belongs to TI's Tiva™ C Series microcontroller family, designed specifically for cost-effective, high-integration embedded applications demanding real-time control, analog signal processing, and USB connectivity in harsh environments.
FAQ
What is the maximum operating frequency of the TM4C1232E6PMIR?
The TM4C1232E6PMIR operates at a maximum system clock frequency of 80 MHz, achieved via its internal PLL configured from the main oscillator or external crystal. This frequency is fully supported across all peripherals and memory interfaces, enabling deterministic real-time execution for time-critical tasks such as motor control loops and ADC sampling synchronization. The TM4C1232E6PMIR maintains this speed across its full industrial temperature range (-40°C to +105°C).
Does the TM4C1232E6PMIR include an integrated USB physical layer (PHY)?
Yes, the TM4C1232E6PMIR integrates a full-speed USB 2.0 physical layer (PHY) compliant with USB specification revision 2.0. This eliminates the need for external USB transceivers in device-mode applications and supports both USB device and OTG functionality. The TM4C1232E6PMIR uses dedicated USB0VBUS and USB0ID pins to detect host/device roles and manage power negotiation autonomously.
How much on-chip flash and SRAM does the TM4C1232E6PMIR provide?
The TM4C1232E6PMIR includes 256 KB of on-chip flash memory for program storage and 32 KB of SRAM for runtime data and stack operations. Flash memory supports in-application programming (IAP) and sector erase, while SRAM is partitioned into contiguous blocks accessible by the CPU and μDMA controller. Both memories are accessible at full 80 MHz speed without wait states.
What analog peripherals are integrated into the TM4C1232E6PMIR?
The TM4C1232E6PMIR integrates a 12-bit, 1 MSPS analog-to-digital converter (ADC) with 12 input channels, hardware sample averaging, and programmable digital comparators. It also includes an internal temperature sensor and supports differential input modes. No DAC or analog comparator is integrated - those functions require external components or GPIO-based PWM filtering.
Is the TM4C1232E6PMIR pin-compatible with other Tiva C Series microcontrollers?
The TM4C1232E6PMIR shares the same 100-pin LQFP package and core pinout with other TM4C123x devices (e.g., TM4C123GH6PM), but is not fully pin-compatible with TM4C129x series due to differences in USB, Ethernet, and LCD controller signals. Migration within the TM4C123x family is supported via software-configurable GPIO remapping, though voltage domain and peripheral enable registers may differ slightly between variants.
TM4C1232E6PMIR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- Tiva™ C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, IrDA, Microwire, SPI, SSI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 49
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.08V ~ 3.63V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C1232E6PMIR FAQ
1.How can I place an order for TM4C1232E6PMIR through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1232E6PMIR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TM4C1232E6PMIR reliable?
The price and inventory of TM4C1232E6PMIR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1232E6PMIR is usually 5 days.
3.What payment methods are accepted for TM4C1232E6PMIR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1232E6PMIR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1232E6PMIR?
TM4C1232E6PMIR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1232E6PMIR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TM4C1232E6PMIR?
For technical support, including TM4C1232E6PMIR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1232E6PMIR requirements.
6.How does Aetrix verify that TM4C1232E6PMIR is sourced from the original manufacturer or authorized distributors?
All TM4C1232E6PMIR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TM4C1232E6PMIR meets industry standards.
7.What is the process for return or replacement of TM4C1232E6PMIR?
All TM4C1232E6PMIR units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1232E6PMIR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TM4C1232E6PMIR part is unused and in its original packaging.
Return procedure for TM4C1232E6PMIR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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